Attachment for ash-pits.



H. I. ROGERS.

ATTACHMENT FOR ASH PITS APPLICATION H'LED JAN-4.1916.

Patented Mar. 13, 1917.

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UNITED .sTArEs PATENT c non Imam-'1- poems for r ar .rarnrmtn titan u- ATTACHMENT ronn sn rirs.

specilieation of Letters'Patent. P t t 13, 191i".

Application filed January 4, 19 16. Seria1 1[o..7 0,271.

- ing the necessity of shoveling the products of the combustion which fall through the grate from the ash pit. I

Another object of the invention is to provide a simply constructed attachment which may loe readily applied and removed without disarranging or discarding any of the parts.

Another object of the inventionis to provide simply constructed devices for mounting or supporting the attachment from the rim of the ash pit or base of'the furnace or like structure.

With these and other objects in view, the invention consists in certain novel features of construction as hereinafter shown and described; and then specifically pointed out in the claims.

Figure 1 is a plan view of a conventional ash pit or base including the grate bars with the improvement applied;

Fig. 2 is a longitudinal section on the line 22 of Fig. 1;

Fig. 3 is a front elevation of the parts shown in Fig. 1;

Fig. 4c is a transverse section on the line 4-4 of Fig. 1;

Fig. 5 is a detached perspective view of one of the attachments.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The ash pit or base portion of the improved device ispreferably formed of cast iron of the usual size and includes a flat bottom 10, side walls 1112 with the lower portions sloping inwardly toward the bottom and open at the front end with the rear portion 13 inclined and curved as shown. At their upper edges the sides ll12 are provided with inwardly directed ledges r flanges 1 1l5, preferably spaced a short distance below the upper edges of the'side walls, as shown more clearly in Figs. 3 and ,4. The rear war-11.13 is likewise provided with an inwardly directed {ledge r fl n the th e port ons 14-1 -16 heing'preferably cast in onepiece withthe body of the base. At their forward ends the side walls 11-12 are connected by a relatively wide transverse .web 17 preferly as i ne Pie w h th r ma de of the base. Formed in the lower edge of the web ,17 are downwardly opening-bearings 1-8 to receive the forward journals 19 of the grate bars 20;, thejournals 19 being extended forwardly .to a suliicient distance to project beyondthe forward face of the shell of the furnace, the latter not being shown as it forms no part of the present invention. Each .of;the journals 1 9.terminates in a squarew-rench receiving portion 21 to enable the grate5bars tobe oscillated in the ordinary manner. The grate'bars may bepfany required construction, and it is not desired to limit the invention in pose of illustration a conventional form of grate bar is shown. Depending from the .rear ledge 16 are enlargements 22 in which sockets are formed to receive the rear journals 23 of the grate bars.

Bearing beneath the forward journals 19 is a holding member 24, the latter being supported in position by clamp bolts 25 having nuts 26, as shown in Figs. 2 and 8. Projecting from the confronting edges of the side ledges 11+15 are a plurality of studs 27 corresponding in number to the transverse studs of the grate bars and in transverse alinement therewith. Disposed within the interior of the base or ash pit are deflecting devices or aprons, one at each side, and substantially alike so that the description of one will suffice for both. Each deflecting device comprises an inclined apron 28, a vertical outer portion 29 and a horizontal upper portion 30, the portion 29 being disposed relatively near the walls 11-12,.while the horizontal portions or flanges 30 bear beneath the lower faces of the side ledges 14.-15. At their rear ends the inclined aprons 28 are curved, as indicated at 31, to correspond with the curvature of the rear wall 13, so that the deflecting devices closely engage the rear wall and prevent the escape of ashes.

Riveted or otherwise secured at 32 to the inclined apron 28 of the deflector devices are rods 33, each having an upper hooked terminal 34 to engage respectively over the journals 19 and 23 of the outer grate bars.

By this means the deflecting devices are supported from downward movement.

Riveted or otherwise secured at 35 to the aprons 28 of the deflecting devices are hangers 36, each having a perforation 37 to engage respectively over the adjacent lug 27. The rods with their terminal hooks and the standards 36 with their apertures 37 thuscoact with the ournals of the grate bars and certain of the lugs 27 to firmly support the deflecting devices in position with the flanges 30 in close contact with the lower faces of the side ledges 14--15. The ash pan is represented conventionally at 38 and provided with a handle 39. By this arrangement it will be obvious that all of the cinders, ashes and the like which fall through the intermediate grate bars are deposited directly in the ash pan, while the ashes, cinders and like matter which fail through the grate bars at the sides are received upon the deflecting devices and conducted thence into the ash pan. Thus all of the cinders and ashes and like matter which fall through the grate bars find their way into the ash pan.

The portions 2829-30 of the devices are each formed from a single plate of sheet or plate metal, preferably steel, while the suspending devices 33-34 and the stand ards 36 are preferably formed of cast metal.

Having thus described the invention what is claimed as new is 1. An ash pit having inwardly directed side ledges, a plurality of grate bars each including terminal journals and supported upon said ash pit, oppositely disposed longitudinal aprons inclining inwardly and downwardly with their upper edges bearing beneath said ledges, hangers attached to said aprons and having terminal hooks engaging over the journals of the grate bars, other hangers connected to said apron, and means for suspending said last-mentioned hangers from said ledges. I

2. An, ash pit having inwardly directed side ledges, each having a plurality of wardly projecting lugs, a plurality of grate bars each including terminal journals and supported upon said ash pit, oppositely disposed longitudinal aprons inclining inwardly and downwardly and bearing by their up per edges beneath said ledges, hangers attached to said apron and having terminal hooks engaging over the journals of the grate bars, and other hangers connected to said aprons and having apertures engaging over said lugs.

In testimony whereof I afliX my signature.

HENRY I. .RGGERS. [1,. 8.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. G. 

